Electronics Arduino Robotics


Electronics,  Robotics,  Arduino,  Internet of Things,  Embedded Systems,  DIY,  Mini Projects

5 Projects

How To Make An Adjustable 555 Timer Relay Switch

Learn how to make a precisely adjustable timer with a variable delay from 1 - 100 seconds that uses the 555 IC. The 555 timer is configured as a Monostable Multivibrator. The output load is driven by the relay switch which is in turn controlled by the timer circuit.

Diy Electronic Horn For A Bicycle Or Car

The LM555 generates an electronic horn signal which is amplified by an LM386. The tone and gain of the horn can be easily varied. The horn can be used in a car, scooter, cycle, and motorbike.

Diy Musical Doorbell

Learn how to make a simple musical bell using the UM66T melody generator IC.

How To Make A Siren Generator

Learn How to Make a DIY Electronic Siren Generator circuit that can produce police car siren, emergency ambulance siren & fire brigade sound using the IC UM3561a Siren Tone Generator.

DIY PCB Etching

Learn how to make a printed circuit board at home using the iron & laser printer method and ferric chloride etchant.